Answer:
a-1 Present value = 6,177.39
a2- Present Value =6,227.79
a3- Choose the payment stream with the highest present value = a2
b1- Present Value=3,353.98
b2-Present Value=2,805.28
b3-Choose the payment stream with the highest present value = b1
Explanation:
a-1 describes an ordinary annuity whose present value is calculated as follows:
[tex] Present value =PMT*\frac{[1-(1+i)^-^n]}{i}[/tex]
where PMT=$800; i= 5%, n= 10
[tex] Present value =800*\frac{[1-(1+0.05)^-^1^0]}{0.05}[/tex] = 6,177.39
a2- [tex]Present value =600*\frac{[1-(1+0.05)^-^1^5]}{0.05}[/tex] = 6,227.79
a3- If I were receiving these payments annually, I would prefer the payment stream with the highest present value ie a2 -Annual payment of $600 for 15 years at 5% interest.
b1- [tex]Present value =800*\frac{[1-(1+0.20)^-^1^0]}{0.20}[/tex] = 3,353.98
b2-[tex]Present value =600*\frac{[1-(1+0.20)^-^1^5]}{0.20}[/tex] =2,805.28
b3- f I were receiving these payments annually, I would prefer the payment stream with the highest present value ie b1- Annual payment of $800 for 10 years at 20% interest.